Summary:

When the magnetic poles reverse, the "geographical" poles do not change. This means that even after the magnetic poles have switched, the sun will continue to rise in Japan, then move to India, then to the Arab regions, and finally to Europe. It will not start rising in Europe first, then move to India, and finally appear in Japan.

In more simpler words, the sun will not start to rise from the WEST even after reversal of magnetic poles. 

Moreover, there will occur no catastrophic events on Earth due to the reversal of magnetic poles. 

Details:

Sahih Bukhari, 4636:

قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم ‏ "‏ لاَ تَقُومُ السَّاعَةُ حَتَّى تَطْلُعَ الشَّمْسُ مِنْ مَغْرِبِهَا فَإِذَا طَلَعَتْ وَرَآهَا النَّاسُ آمَنُوا أَجْمَعُونَ، وَذَلِكَ حِينَ لاَ يَنْفَعُ نَفْسًا إِيمَانُهَا ‏"‏‏.‏ ثُمَّ قَرَأَ الآيَةَ‏.‏

Allah's Messenger (ﷺ) said, "The hour will not be established till the sun rises from the West; and when it rises (from the West) and the people see it, they all will believe. And that is (the time) when no good will it do to a soul to believe then." Then he recited the whole Verse (6.158)

Today, Islamic preachers try to confirm this prophetic tradition scientifically, by using the phenomenon of "magnetic pole reversal” of the earth. 

Nevertheless, the truth is, the sun will still not rise from the geographical west, despite the reversal of earth's poles.

The reversal of magnetic poles does not cause the reversal of "geographical poles," nor does it bring about any catastrophic events on Earth

The reversal of the Earth's magnetic poles does not involve the geographical poles changing places. The magnetic poles and geographical poles are distinct concepts. Here’s a detailed explanation:

Geographical Poles

The geographical poles (North and South Poles) are fixed points on the Earth's surface where the planet's axis of rotation intersects the surface. These poles are defined by the Earth's rotational axis and remain relatively stable over time, apart from slight movements due to the planet's wobble.

Magnetic Poles

The Earth's magnetic poles are the points on the Earth's surface where the planet's magnetic field lines are vertical. These poles are influenced by the movements of molten iron and nickel in the Earth's outer core, which generate the planet's magnetic field.

Magnetic Pole Reversal

A magnetic pole reversal occurs when the Earth's magnetic field gradually changes direction such that the magnetic north pole becomes the magnetic south pole and vice versa. This process involves changes in the flow of molten iron within the Earth's outer core, which alters the planet's magnetic field. Magnetic pole reversals are a natural part of Earth's geologic history and have occurred many times over millions of years.

Impact on Geographical Poles

The geographical poles remain unchanged during a magnetic pole reversal. The Earth will continue to rotate around the same axis, and the North and South Poles will stay in their current locations. The only change is in the direction of the magnetic field, not the planet’s physical rotation or its axis.

Potential Destruction During Magnetic Pole Change

  • Magnetic Field Weakening: During a magnetic pole reversal, the Earth's magnetic field may weaken temporarily. This could result in an increased influx of cosmic and solar radiation reaching the Earth's surface, potentially affecting satellite operations, communication systems, and power grids.
  • Increased Radiation: With a weaker magnetic field, more charged particles from the sun (solar wind) could penetrate the Earth's atmosphere, potentially increasing radiation levels. This could have implications for high-altitude aviation and astronauts.
  • No Catastrophic Changes: Despite these potential effects, there is no evidence to suggest that a magnetic pole reversal would cause catastrophic destruction on Earth. Life on Earth has survived numerous past reversals without evidence of mass extinctions or severe environmental changes directly attributable to magnetic reversals.

Conclusion

In summary, during a magnetic pole reversal, only the magnetic field of the Earth changes direction. The geographical poles, which are defined by the Earth’s axis of rotation, remain fixed. While there may be some temporary disruptions and increased radiation levels during a magnetic reversal, there is no indication that such an event would lead to catastrophic destruction on Earth.

PS:

According to Islam, the last hour means when the mountains will be flying in the air like wool. (Surah al-Qar’iah Ayaat 1-5). But the reversal of magnetic poles will not cause any such destruction of mountains.